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Summary of Expenditures for Property and Equipment by Segment (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Segment Reporting Information [Line Items]
Expenditures for property and equipment	$ 173,187	$ 121,421
U.S. Dialysis And Related Lab Services
Segment Reporting Information [Line Items]
Expenditures for property and equipment	133,450	105,395
HealthCare Partners (HCP)
Segment Reporting Information [Line Items]
Expenditures for property and equipment	20,145	5,034
Other Segments
Segment Reporting Information [Line Items]
Expenditures for property and equipment	$ 19,592	$ 10,992

X

- Definition

The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Investing Activities
-URI http://asc.fasb.org/extlink&oid=6516133

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3213-108585

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- Definition

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+ References

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